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Communication terminal and communication system

a terminal and communication technology, applied in the field of communication terminals and communication systems, can solve the problems of poor communication conditions and inability to establish millimeter-wave communication between terminals, and achieve the effect of good millimeter-wave communication

Active Publication Date: 2021-03-11
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patent is to provide a communication terminal and system that can maintain good millimeter-wave communication between devices. This means that the two devices can communicate with each other using millimeter-wave technology without losing their connection.

Problems solved by technology

Since millimeter-wave communication suffers high propagation loss and narrow directivity, when, for example, mobile information communication terminals are put in bags or cases, the received signal strengths are decreased to cause such a problem that millimeter-wave communication may not be established between terminals or good communication conditions may not be maintained because of a decrease in communication speed, or the like.

Method used

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  • Communication terminal and communication system
  • Communication terminal and communication system
  • Communication terminal and communication system

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first embodiment

[0023]FIG. 1 is a schematic diagram showing the schematic configuration of the communication terminals and the communication system according to a first embodiment. As shown in FIG. 1, the communication system according to the present embodiment includes a first communication terminal 1, a second communication terminal 2, and a third communication terminal 3.

[0024]The continuous arrows shown in FIG. 1 represent millimeter-wave communication paths in 60 GHz band of, for example, WiGig (Wireless Gigabit: registered trademark) or the like. The dashed line arrow shown in FIG. 1 represents a microwave communication path in 2.4 GHz band of, for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or the like. The direction indicated by the dashed line arrow shown in FIG. 1 indicates the direction of transmission of a first received signal strength SGST1 (described later) in the present disclosure. A microwave communication path and its direction of transmission are not...

second embodiment

[0100]FIG. 7 is a flowchart for selecting a millimeter-wave communication path in a communication system according to a second embodiment. The schematic configuration of the communication terminals and the communication system, the modes of the communication terminals, the mode of the millimeter-wave communication antenna, and the flowchart for acquiring a received signal strength in millimeter-wave communication of the communication terminals are similar to those of the first embodiment, so the description thereof is omitted.

[0101]In the present embodiment, when the second received signal strength SGST2 is higher than or equal to the first received signal strength SGST1 or when the second received signal strength SGST2 is higher than or equal to the third received signal strength SGST3, a functional operation (for example, AR functional operation) is performed using direct millimeter-wave communication between the second communication terminal 2 and the first communication terminal...

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Abstract

A communication terminal capable of at least millimeter-wave communication and microwave communication is provided. The communication terminal includes a repeater that relays communication between a first communication terminal and a second communication terminal by using millimeter-wave communication. Such a communication terminal is capable of maintaining good millimeter-wave communication between terminals.

Description

[0001]This application claims priority from Japanese Patent Application No. 2019-163990 filed on Sep. 9, 2019. The content of this application is incorporated herein by reference in its entirety.BACKGROUND OF THE DISCLOSUREField of the Disclosure[0002]The present disclosure relates to a communication terminal and a communication system.Description of the Related Art[0003]In recent years, with the proliferation of mobile information communication terminals, such as smartphones and tablet PCs, the use of the augmented reality (AR) function that displays in a superimposed manner real image information and virtual information associated with the image information on, for example, a head mounted display (HMD) to augment real perceptual experience is increasing. As a communication terminal for realizing such an AR function (hereinafter, also referred to as AR terminal), for example, a glasses-type communication device is described (see, for example, Japanese Unexamined Patent Application ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04B7/15H04B17/318H04W4/80
CPCH04B7/15H04W4/80H04B17/318H04B7/0456H04B7/15528H04B17/345H04B17/23H04B17/26H04B17/27
Inventor MIZUNUMA, RYUKENTANAKA, SATOSHIYAMAMOTO, YASUHISAITABASHI, AKIKO
Owner MURATA MFG CO LTD
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